三种污水污泥对两种地被植物和土壤的影响  

Effects of Three Sewage Sludges on Two Ground Cover Plants and Soil

作　　者：陈祥[1] 包兵[1] 张晓艳 张惠心 陈玉成[4] 

机构地区：[1]重庆市园林绿化科学研究所,重庆400042 [2]重庆市选旺食品有限公司,重庆401329 [3]重庆市南山植物园,重庆400065 [4]西南大学资源环境学院,重庆400716

出　　处：《西南大学学报（自然科学版）》2009年第5期130-133,共4页Journal of Southwest University(Natural Science Edition)

基　　金：重庆市建委2006年课题基金资助项目(2006003);重庆市科技成果登记项目(2008Y037)

摘　　要：通过田间试验研究了在不同施用量下的干化污泥、消化污泥和堆沤污泥，对结缕草和葱兰生理特性的影响，以及对土壤重金属含量的影响．结果表明：施用供试污泥对促进2种地被植物生长的作用明显．随着施用量的增加，结缕草和葱兰的主要生理指标在施用量O～3kg／m^2范围内均有显著增加，但是结缕草的叶绿素含量在施用量1～3kg／m^2范围内增幅呈减小的趋势．3种污泥之间，促进植物生长的作用大小顺序为：堆沤污泥，消化污泥，干化污泥．从施用污泥对土壤重金属含量影响的角度看，供试污泥在园林地被植物上短期施用的最高用量可为3kg／m^2．In a field experiment, two ground cover plants （Zoysia japonica Steud and Zephyranthes candida Herb） were supplied with air-dry sludge, digested sludge and composted sludge, which were processed by draft sewage sludge as materials, and the effects of the applied sludge on the physiological parameters of the plants were studied. The results showed that the three sludges tested could improve the physiological parameters of the two ground cover plants. In the range of 0-3 kg/m^2, the main physiological parameters of the two plants increased significantly with application rate of the sludge. However, the content of chlorophyll of Zoysia japonica Steud tended to decrease with sludge application within the rate range of 1-3 kg/m^2. The growth-promoting effect of the sludges was in the order of composted sludge 〉 digested sludge 〉 air-dry sludge. When the effect of sludge application on soil heavy metals is taken into consideration, a maximum rate of sludge of 3 kg/m^2 is recommended for short-term application to landscape cover plants.

关 键 词：污水污泥 地被植物 土壤 生理特性 

分 类 号：X705[环境科学与工程—环境工程]